Lighting equipment

Abstract

To provide a luminaire which hardly hinders mounting and replacement work of a storage battery.SOLUTION: A luminaire includes: a light source unit 1 having a light emitting element on a surface side; a battery unit 3 for detachably storing a storage battery in a battery case; and a power source unit 2 for lighting the light source unit 1. The light source unit 1 is positioned on a surface side of the power source unit 2 and the battery case 3, and has a shaft part 165 extending in the front and back direction. The power source unit 2 includes a support part 24 for rotatably supporting the light source unit 1 with the shaft part 165 as a rotary shaft. When the light source unit 1 rotates around the shaft part 165 in a first direction and comes into a first state, the storage battery becomes removable from the battery case. When the light source unit 1 is viewed from the surface side, the shaft part 165 is provided on the periphery of the light source unit 1, and when the support part 24 is viewed from the surface side, the support part 24 is provided on the periphery of the power source unit 2.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a lighting device equipped with a storage battery. [Background technology]

[0002] As an example of an illumination device, one has been proposed that includes "a light source board having a light-emitting section that emits light from a mounting surface; a storage battery; a power supply unit that charges the storage battery with power from the commercial power source when power is supplied from the commercial power source and lights up the light-emitting section with power from the storage battery when power supply from the commercial power source is cut off; a main body; and a holder that houses the light source board, is held by the power supply unit, and is mounted on the main body, wherein the holder is freely rotatable relative to the power supply unit when released from its state of being held by the power supply unit" (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-12650 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, the holder is configured to be freely rotatable around a rotation axis perpendicular to the vertical direction relative to the power supply unit. Therefore, when installing or replacing the storage battery, as shown in Figure 26, the light source board becomes parallel to the vertical direction due to its own weight, which can easily get in the way of the work. The present invention has been made in consideration of the above circumstances, and has an object to provide a lighting device that does not interfere with the installation or replacement of a storage battery. [Means for solving the problem]

[0005] In order to solve the above problems, the lighting device of the present invention includes a light source unit having a light-emitting element on its front side, a battery unit that detachably houses a storage battery in a battery case, and a power supply unit that lights up the light source unit, wherein the light source unit is located on the front side of the power supply unit or the battery case, the light source unit has an axis extending in the front-to-back direction, the power supply unit or the battery case has a support part that rotatably supports the light source unit with the axis part as a rotation axis, and when the light source unit rotates around the axis part in a first direction to reach a first state, the storage battery becomes removable from the battery case, when the light source unit is viewed from the front side, the axis part is provided on the periphery of the light source unit, and when the support part is viewed from the front side, the support part is provided on the periphery of the power supply unit or the battery case. Effect of the Invention

[0006] According to the present invention, the light source unit in the open state rotates about the front-back direction as a rotation axis and is positioned in a direction perpendicular to the front-back direction, which makes the operation easier. [Brief description of the drawings]

[0007] [Figure 1] 1A and 1B are perspective views of an illumination device according to an embodiment, in which FIG. 1A is a view seen from below, and FIG. [Diagram 2] FIG. 2 is a cross-sectional view of the lighting device, with a portion enlarged. [Diagram 3] FIG. 2 is a perspective view of the lighting device in an exploded state, as viewed from below. [Figure 4] FIG. 2 is a perspective view of the lighting device in an exploded state, seen from above, with a portion enlarged. [Diagram 5] 5A and 5B are perspective views of the light source unit in an exploded state, in which FIG. 5A is a view from below, and FIG. 5B is a view from above. [Figure 6] 1A is a perspective view of the power supply unit seen from below, FIG. 1B is a diagram of the power supply unit seen from the side, and FIG. 1C is a perspective view of the power supply unit seen from above. [Figure 7]1A is a perspective view of the battery unit seen from below with a portion enlarged, FIG. 1B is a view of the battery unit seen from the side, and FIG. 1C is a perspective view of the battery unit seen from above. [Figure 8] FIG. 4 is a partially enlarged sectional perspective view for explaining the mounting structure of the mounting tool and the fixing structure of the fastener. [Figure 9] 1A to 1C show the lighting device with the cover body removed and the light source unit in an open state, where (a) is a side view, (b) is a bottom view, and (c) is a diagonal bottom view. [Figure 10] FIG. 11 is a cross-sectional view showing a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] <Summary> A first lighting device according to one aspect of the embodiment includes a light source unit having a light-emitting element on a front side, a battery unit that detachably houses a storage battery in a battery case, and a power supply unit that lights up the light source unit, the light source unit being located on the front side of the power supply unit or the battery case, the light source unit having an axis extending in a front-rear direction, the power supply unit or the battery case having a support that rotatably supports the light source unit with the axis as a rotation axis, when the light source unit rotates around the axis in a first direction to reach a first state, the storage battery becomes removable from the battery case, when the light source unit is viewed from the front side, the axis is provided on the periphery of the light source unit, and when the support is viewed from the front side, the support is provided on the periphery of the power supply unit or the battery case. This allows the front side of the power supply unit or the battery case to be opened widely, and troubles in maintenance work can be avoided. A second lighting device according to one aspect of the embodiment is the first lighting device, wherein the light source unit has an engaging portion that engages with an engaged portion of the power supply unit or the battery case on which the support portion is provided when the light source unit rotates around the shaft portion in a second direction to enter a second state, and when the engaged portion is viewed from the front side, the engaged portion is provided at a position different from the support portion on the periphery of the power supply unit or the battery case on which the support portion is provided. This makes it possible to reduce the overlap between the light source unit and the power supply unit or the battery case in the front-back direction in the first state. In addition, the click gap during engagement can be used to check whether the light source unit has been safely fixed.

[0009] A third lighting device according to an aspect of an embodiment is the first or second lighting device, wherein the light source unit has a mounting member for mounting the light emitting element, and the mounting member has a promotion portion for promoting rotation of the light source unit, thereby improving operability of an operator rotating the light source unit during maintenance. A fourth lighting device according to one aspect of the embodiment is any one of the lighting devices according to the first to third aspects, wherein the support portion is provided on the power supply unit, the battery unit is detachably attached to the power supply unit, one of the battery unit and the power supply unit has an extension portion that extends toward the other side of the battery unit and the power supply unit in a direction perpendicular to the front-rear direction, and a recess, a through groove portion or a through hole portion that is formed on the extension portion and extends along the extension direction of the extension portion, and the other of the battery unit and the power supply unit has an engaging protrusion portion that engages with the recess, the through groove portion or the through hole portion when the battery unit is moved in the front-rear direction relative to the power supply unit. This allows the power supply unit and the battery unit to be positioned.

[0010] <Embodiment> 1. Overall configuration of the lighting device As shown in FIG. 1, the lighting device X is of a built-in type that is attached to an installation surface (not shown) such as a ceiling. 2, the lighting device X includes a light source unit 1, a power supply unit 2, and a battery unit 3. When power is being supplied from a commercial power source, the power supply unit 2 lights up the light source unit 1 while charging the battery unit 3, and when power is not being supplied from the commercial power source, the battery unit 3 lights up the light source unit 1. In other words, the lighting device X is a so-called emergency lighting device. The direction in which light is emitted from the light source unit 1 is referred to as the front-back direction, and the light-emitting side is referred to as the front side. Here, since the lighting device X is installed on a ceiling or the like, the front-back direction will be referred to as the up-down direction, and the front side will be referred to as the downside in the following description.

[0011] The lighting device X includes a light source unit 1, a power supply unit 2, and a battery unit 3 in a housing 4. The lighting device X here further includes a terminal block 71 in the housing 4. The lighting device X includes the battery unit 3 detachably attached to the power supply unit 2, and includes the light source unit 1 such that the opening 4a of the housing 4 can be opened and closed freely, and the battery unit 3 inside the housing 4 can be detached by opening the light source unit 1 (see FIG. 9). Each part will be explained below.

[0012] 2.Each part (1) Housing The following description will be given mainly with reference to FIG. 3 and FIG. The housing 4 comprises a housing body 5 and a lid body 6, and the lid body 6 is detachably attached to the housing body 5 via mounting fixtures 85, 86. The lid body 6 is not necessarily a member constituting the housing, and may be a decorative frame that is detachably attached to the housing (here, the housing body 5). (1-1) Housing body The housing body 5 is inserted upward from the opening of the installation surface. The housing body 5 is in the shape of a closed cylinder having a peripheral wall 50 and an end wall 51. The peripheral wall 50 has an outer flange 52 at the open end. The housing body 5 accommodates the power supply unit 2 and the battery unit 3 therein, and has a power supply unit mounting portion 53 on an end wall 51 for mounting the power supply unit 2. As shown in FIG. 4, the power supply unit mounting portion 53 is formed by through holes 53a and 53b. The housing body 5 has leaf spring mounting parts 54 on the peripheral wall 50 for mounting leaf springs 81 for mounting the lighting device X to an opening in the installation surface. There are two leaf springs 81 here, which are mounted at two positions on either side of the central axis of the housing body 5. The leaf spring mounting parts 54 are formed by through holes 541, 543. The housing body 5 has a terminal block mounting portion 55 on the end wall 51 for mounting the terminal block 71. The terminal block mounting portion 55 is composed of a through hole 55a into which the locking claw 71a of the terminal block 71 is inserted and engaged, and a through hole 55b into which the positioning protrusion 71b of the terminal block 71 is inserted.

[0013] The end wall 51 has a stepped shape, with the terminal block 71 attached to the lower portion and the power supply unit 2 attached to the higher portion. A cutout portion (through hole) 51a is provided in the upright portion between the lower portion and the higher portion. In the cutout portion 51a, a connection portion 71c of the wiring of the terminal block 71 can be disposed inside or near the inside of the housing main body 5. This makes it possible to prevent dust from entering the connection portion 71c of the wiring of the terminal block 71. The outer flange portion 52 projects outward in the radial direction. There are a plurality of outer flange portions 52 spaced apart in the circumferential direction. This makes it easy to form a plurality of outer flange portions 52. The housing body 5 has a mounting fixture holding part 56 that holds a mounting fixture 86 by using one of the outer flange parts 52. The mounting fixture 86 here is, for example, a magnet, and has a rectangular parallelepiped thick part 861 and thin parts 863 extending from both ends of the thick part 861 in the longitudinal direction, as shown in the enlarged view of FIG. 4. The mounting fixture holding part 56 is formed by folding back a part of the outer flange part 52 located below the leaf spring mounting part 54 on the battery unit 3 side so as to sandwich the thin parts 863 on both sides of the thick part 861 from both sides in the vertical direction. A through hole is formed in the center of the folded back part 561, and the thick part 861 is disposed in the through hole, so that it is exposed downward as shown in FIG. 3, and the thick part 861 can come into contact with the peripheral part of the lid body 6.

[0014] (1-2) Lid body The lid body 6 covers the opening of the housing body 5 from below. The lid body 6 has a magnetic body for mounting to the mounting fixture (magnet) 86, which is made of a metal plate in this embodiment. The lid body 6 is disk-shaped. The cover body 6 has a through hole 6a for the lens body 14 of the light source unit 1 and a through hole 6b for the operation display unit 23 of the power supply unit 2. The lid body 6 has a wire spring mounting portion 61 for mounting a wire spring 85 for mounting on the housing body 5 side so as to be able to open and close the opening. As shown in FIG. 4, the wire spring attachment portion 61 is configured with a locking portion 613 formed by extending a part of the punched portion for forming the through hole 6c upward and then bending it downward. The wire spring 85 is inserted into the back side of the lid body 6 from below using the through hole 6c, and is locked from above by the locking portion 613. This allows the lid body 6 to be supported around the base portion 851 of the wire spring 85 so as to be rotatable. A sticker 87 indicating the display function of the operation display unit 23 is attached to the bottom of the through hole 6c, thereby preventing the wire spring 85 from falling off.

[0015] (2) Light source unit The explanation will be mainly based on FIG. The light source unit 1 includes a base 10, a light source module 12 disposed on the lower surface of the base 10, a lens body 14, and a holder 16. Here, the light source unit 1 includes a cover body 18 that protects the light source module 12. (2-1) Bass The base 10 is plate-shaped and has a through hole 10a for the pin portion 183 of the cover body 18, a screw hole 10b for the screw 169 for fixing the holder 16, and a through hole 10c for the shaft portion 165 of the holder 16. The light source module 12 is mounted on the lower surface of the base 10, and the base 10 is a mounting member for mounting the LED element 121, which is an example of a light emitting element. The base 10 is made of, for example, a metal material. Therefore, the base functions as a heat sink. The base 10 has a promotion portion 101 that promotes rotation of the light source unit 1 when the light source unit 1 is rotated around the central axis of the shaft portion 165 in order to remove the battery unit 3. There are two promotion portions 101, which are provided on the peripheral surface so as to face each other. One promotion portion 101 is adjacent to the through hole 10c.

[0016] (2-2) Light source module The light source module 12 has an LED element 121 as a light source, and a light source board 123 on which the LED element 121 is mounted. A harness 125 from the power supply unit 2 is connected to the light source board 123. (2-3) Cover body The cover body 18 has a covering portion 181 that covers the light source module 12 and a pin portion 183 that extends upward from the covering portion 181 . The covering portion 181 is provided with a through hole 181a for the LED element 121 and a through hole 181b for the terminal portion 127 to which the harness 125 is connected. The pin portion 183 is inserted through the through hole 123 a of the light source substrate 123 and fitted into the through hole 10 a of the base 10 .

[0017] (2-4) Lens body The lens body 14 integrally includes an annular base portion 141 and a lens portion 143 that bulges downward from the base portion 141 in a hollow shape. The base portion 141 abuts against a covering portion 181 of the cover body 18.

[0018] (2-5) Holder The holder 16 has a main body portion 161, through holes 163 for screws 169 that fix the main body portion 161 to the base 10, a shaft portion 165 that extends cylindrically upward from the main body portion 161, and an engagement portion 167 that engages with an engaged portion 25 (see FIG. 6) of the power supply unit 2. When viewed from below, the shaft portion 165 is provided on the periphery of the holder 16 (light source unit 1). The holder 16 is fixed to the base 10 by inserting the screws 169 through the through holes 163 and screwing them into the screw holes 10b of the base 10 in a state where the holder 16 covers the light source module 12, the cover body 18, and the lens body 14. In this manner, the light source unit 1 is assembled. The main body 161 has a stepped through hole 161a for accommodating the outer periphery of the base 141 of the lens body 14 therein and for allowing the lens portion 143 to protrude downward. This stepped through hole 161a restricts the lens body 14 from passing downward. The shaft portion 165 is rotatably inserted into the tube portion 241 (see FIG. 6) of the power supply unit 2. When the light source unit 1 is viewed from below, the shaft portion 165 is provided at a portion that is outside the circular lens body 14 and protrudes radially from the lens body 14. The shaft portion 165 has an engagement portion (abutment portion) 165a that engages (abuts) with the drop prevention portion 243a and the rotation restriction portion 243b of the power supply unit 2. The engagement portion 165a is convex. The shaft portion 165 has a pair of groove portions 165b parallel to the central axis on either side of the central axis so that the engagement portion 165a can easily elastically deform toward the central axis of the shaft portion 165.

[0019] When light source unit 1 is viewed from below, engagement portion 167 is provided on the outer side of circular lens body 14 and at a portion that protrudes radially from lens body 14. Engagement portion 167 has protruding portion 167a that protrudes in a direction perpendicular to the central axis relative to shaft portion 165, bent portion 167b that bends upward from protruding portion 167a, and engagement portion 167c (see FIG. 4) that protrudes from bent portion 167b toward shaft portion 165. When the light source unit 1 rotates around the shaft portion 165, the engaging portion 167c of the engaging portion 167 engages with the engaged portion 25 of the power supply unit 2. This allows the light source unit 1 in the closed state to be firmly supported on the power supply unit 2 side.

[0020] (3) Power supply unit The following explanation will be given mainly with reference to FIG. The power supply unit 2 houses a circuit 20 (see Figure 2) within a power supply case 21, which creates lighting power for the light source unit 1 from the commercial power source received via the terminal block 71, creates charging power for the battery unit 3, and drives the control unit. The power supply unit 2 here includes a receiving section 22 that receives a control signal from a remote control (not shown), an operation display section 23 having an operation switch 231 (see the enlarged view in FIG. 2) for inspection operation, and an indicator light 233. The circuit 20 has a plurality of electronic components 201 and a circuit board 203 (see FIG. 2), and the circuit board 203 has connectors 205, 207 for connecting to the terminal block 71 and the light source unit 1, an operation switch 231, an indicator light 233, etc. As shown in the enlarged view of FIG. 2, the main surface of the circuit board 203 on which the operation switch 231 and the indicator light 233 are mounted is referred to as a first main surface 203a. 6, the power supply case 21 is made up of a box-shaped power supply case main body 211 and a power supply case lid 213 that covers the opening of the power supply case main body 211. For example, the power supply case lid 213 and the power supply case main body 211 are connected by connecting means such as engaging means, screwing means, etc. Here, an engaging protrusion 213a of the power supply case lid 213 engages with an engaging recess 211d of the power supply case main body 211. Power supply case body 211 also serves as a first case located on the first main surface 203a side of circuit board 203. Power supply case cover 213 also serves as a second case located on the second main surface 203b side of circuit board 203. The receiving unit 22 includes, for example, a receiving sensor (not shown) that receives infrared rays or the like, which is provided on the circuit board 203. The power supply case 21 has an opening in a portion corresponding to the receiving sensor, which can improve the receiving sensitivity.

[0021] The operation display unit 23 receives operations from the user through the operation switch 231, and displays the received contents, results, etc., on the indicator lamps (LED elements) 233. When an operation such as inspection is performed, the control unit in the circuit 20 performs the inspection, and based on the result, the corresponding indicator lamp 233 is turned on or blinks. 2, the operation switch 231 is of a button type and is provided on the lower end side of the circuit board 203. The circuit board 203 is accommodated in the power supply case 21 so that the operation switch 231 is located within a protruding portion 21e that protrudes downward from the power supply case 21. The main surface of the circuit board 203 is arranged parallel to the vertical direction, and the operation switch 231 is mounted on the circuit board 203 so that the pressing direction when operated is the vertical direction. The portion of the power supply case body 211 facing the button portion 231a of the operation switch 231 is configured as a deformable portion 211a that is elastically deformable in the vertical direction. The deformable portion 211a here is configured in a cantilever shape on the side opposite the circuit board 203. Specifically, it extends downward in an "L" shape from the side opposite the circuit board 203. The deformable portion 211a is surrounded by a through groove 211c (see FIG. 6). The extending tip of the deformable portion 211a is configured not to overlap the circuit board 203, that is, the deformable portion 211a is configured not to exceed the first main surface 203a of the circuit board 203 toward the second main surface 203b. This makes it possible to prevent the deformable portion 211a from interfering with the circuit board 203 when the operation switch 231 is operated, and to suppress damage to the circuit board 203 caused by the deformable portion 211a. The protruding portion 21e is covered by a protective cover 235. The deformable portion 211a has a protrusion 211b protruding downward, and the protrusion 211b fits into a recess of a pressing portion 235a of the protective cover 235. As a result, by pressing the pressing portion 235a of the protective cover 235, the deformable portion 211a of the power supply case 21 is elastically deformed, and the button portion 231a of the operation switch 231 is pressed. The peripheral portion of the pressing portion 235a of the protective cover 235 is a thin-walled portion 235c having a groove formed in the thickness direction.

[0022] The power supply unit 2 has a support portion (for convenience, referred to as a "light source unit support portion") 24 in the power supply case 21 that supports the light source unit 1 so as to be movable in the up and down direction. The power supply unit 2 has a light source unit support portion 24 in the power supply case 21 that supports the light source unit 1 so as to be rotatable around a shaft portion 165 of the light source unit 1 as a rotation axis. The light source unit support portion 24 here supports the light source unit 1 so as to be movable in the up and down direction and rotatable around the shaft portion 165. When viewed from below, the light source unit support portion 24 is provided on the periphery of the power supply case 21 as shown in (b) of FIG. 9. When the light source unit 1 rotates around the axis 165 in a first direction to enter a first state (also called the "open state" and the state shown in Figure 9), the battery unit 3 can be removed from the power supply unit 2. When the light source unit 1 rotates around the axis 165 from the first state to enter a second state (also called the "closed state") which is opposite to the first direction, the light source unit 1 is positioned below the battery unit 3 and the power supply unit 2, and the lid body 6 of the housing 4 can be attached to the housing body 5. The light source unit support portion 24 is composed of a tube portion 241 into which the cylindrical shaft portion 165 is inserted. In other words, the light source unit support portion 24 is composed of an outer fitting portion that fits onto the outside of the shaft portion 165. The tube portion 241 has a cylindrical shape with an inner diameter equal to the diameter of the cylindrical shaft portion 165, and this allows the light source unit 1 to be supported movably in the vertical direction and around the shaft portion 165.

[0023] The light source unit support 24 has a fall prevention portion 243a that prevents the light source unit 1 from falling. The fall prevention portion 243a here is configured by a cutout portion 243 with the front side cut out, and the engagement portion 165a of the shaft portion 165 fits into the cutout portion 243. As a result, when the light source unit 1 moves downward, the engagement portion 165a of the shaft portion 165 engages with the fall prevention portion 243a located at the lower end of the cutout portion 243 in the tube portion 241. In this way, by setting the vertical length of the cutout portion 243, the vertical movement range of the light source unit 1 can be regulated. Note that in FIG. 6, the lead line of the cutout portion 243 utilizes the lead line of the light source unit support 24. The light source unit support 24 has a rotation restricting portion 243b that restricts the rotation range of the light source unit 1 around the shaft 165. The rotation restricting portion 243b here is configured by an end face (an end face along the up-down direction) of the cutout portion 243 that is perpendicular to the circumferential direction. The engagement portion 165a of the shaft 165 fits into the cutout portion 243, and when the light source unit 1 rotates around the shaft 165 in a first direction, the engagement portion 165a abuts against the rotation restricting portion 243b, which is the end face on the first circumferential direction side of the cutout portion 243 (this state is the first state), and when the light source unit 1 rotates around the shaft 165 in a second direction, the engagement portion 165a abuts against the rotation restricting portion 243b, which is the end face on the second circumferential direction side of the cutout portion 243 (this state is the second state). In this way, by configuring the circumferential length of the cutout portion 243, it is possible to restrict the rotation range of the light source unit 1. Furthermore, the cutout portion 243 can form the drop prevention portion 243a and the rotation restriction portion 243b, which can be implemented at low cost.

[0024] The power supply unit 2 has an engaged portion 25 with which the engaging portion 167 of the light source unit 1 engages when the light source unit 1 rotates around the shaft portion 165 in a second direction to enter a second state. The engaged portion 25 has an extending portion 251 extending downward from the bottom wall of the power supply case 21, and an engaged portion 253 extending from the lower end of the extending portion 251 in a direction away from the light source unit support portion 24 (see FIG. 9). The lower surface of the engaging portion 167c of the light source unit 1 engages (abuts) with the upper surface of the engaged portion 253. When viewed from below, the engaged portion 25 is provided on the periphery of the power supply case 21 at a position different from the light source unit support portion 24, as shown in (b) of FIG. 9. In addition, since the protrusion 21e (protective cover 235) of the power supply unit 2 protrudes downward, it can also function as a stopper that restricts the rotation of the light source unit 1 in the second orientation.

[0025] The power supply unit 2 has a guide portion 26 in the power supply case 21 that guides the battery unit 3 to the mounting position when the battery unit 3 is mounted. Guide portion 26 is provided on wall portion 21a of power source case 21 facing battery unit 3, between light source unit support portion 24 and engaged portion 25. Guide portion 26 has a protruding portion 261 that has a U-shaped cross section and extends in the vertical direction, and a groove portion 263 that is formed in the wall portion of protruding portion 261 on the battery unit 3 side and extends in the vertical direction. In other words, guide portion 26 has an inverted U-shaped dovetail groove cross section, and guided portion 35 (see FIG. 7(c)) of battery unit 3 that has a T-shaped cross section is inserted from the lower opening. The guide part 26 has a guide part 265 at the lower end of the protruding part 261, in which the width of the groove part 263 and the distance between the pair of side wall parts of the protruding part 261 increase downward in the up-down direction. This makes it easy to insert the guided part 35 of the battery unit 3 into the groove part 263. The power supply unit 2 has a connector 209 for electrically connecting to the battery unit 3 in a recessed portion 21b below the guide portion 265 and recessed in the thickness direction from the wall portion 21a.

[0026] The power supply unit 2 has an attachment portion (for convenience, referred to as the "battery unit attachment portion") 27 for detachably attaching the battery unit 3. The battery unit attachment portion 27 has an extension portion 271 that extends toward the battery unit 3 in a direction perpendicular to the up-down direction, and a through groove portion 273 that is formed in the extension portion 271 and extends in the extension direction of the extension portion 271. The extension portion 271 is provided on the side wall portion 21c of the power supply case 21, above the engaged portion 25. A protruding portion 373 (see FIG. 7(a)) of the battery case 31 engages with the through groove portion 273, and this engagement allows the battery unit 3 to be detachably attached to the power supply unit 2, and also allows the connector 33 (see FIG. 7) of the battery unit 3 to be inserted from below into the connector 209 of the power supply unit 2 for electrical connection. Note that the protruding portion 373 also serves as an engaging convex portion, as it engages with the through groove portion 273.

[0027] The power supply unit 2 has a housing mounting portion 28 for mounting the power supply unit 2 to the housing 4, on the top wall portion 21d of the power supply case 21. The housing mounting portion 28 has an extending portion 281 extending upward, and an engaged portion 283 extending parallel to and spaced from the upper end of the extending portion 281.

[0028] (4) Battery unit The following description will be mainly given with reference to FIG. The battery unit 3 includes a chargeable and dischargeable storage battery 30 (see FIG. 2), a battery case 31 that houses the storage battery 30, and a connector 33 that is provided in the battery case 31 and that is for electrically connecting to the power supply unit 2. The battery case 31 is box-shaped and comprises a battery base 311 located at the bottom and a battery cover 313 that covers the battery base 311 from above, and the battery base 311 and the battery cover 313 are connected to each other by a connecting means such as an engaging means, a screwing means, etc. Here, an engaging protrusion 313a of the battery cover 313 engages with an engaging recess 311a of the battery base 311.

[0029] The battery unit 3 has a guided portion 35 on the battery case 31 for guiding the battery unit 3 to a mounting position on the power supply unit 2 when the battery unit 3 is mounted on the power supply unit 2 . The guided portion 35 is a wall portion 31a of the battery case 31 facing the power supply unit 2, and is provided at approximately the center in a direction (also called the width direction of the battery unit 3) perpendicular to the direction facing the power supply unit 2 (facing direction) and the up-down direction. This allows the battery unit 3 to be guided in a well-balanced manner. The guided portion 35 has a "T" shaped cross section and integrally comprises a vertical rib portion 351 that protrudes towards the power supply unit 2 and extends in the vertical direction, and a horizontal rib portion 353 that bends from the protruding tip of the vertical rib portion 351 to both sides in the width direction of the battery unit 3 and extends in the vertical direction. The guided portion 35 is inserted into the guide portion 26 of the power supply unit 2 from below, and is guided upward. In addition, the battery unit 3 has ribs 355 provided on both sides of the guided portion 35 in the width direction of the battery unit 3 and parallel to the guided portion 35 in order to maintain a distance from the power supply unit 2. When the guided portion 35 is guided by the guide portion 26 of the power supply unit 2, the end face of the rib 355 abuts against or is close to the wall portion 21a of the power supply case 21. The connector 33 is provided on the upper surface of an extending portion 315 that extends from the lower end of the guided portion 35 towards the power supply unit 2 . Although the above embodiment shows a pattern in which the battery unit 3 is provided with one guided portion 35, the battery unit 3 may be provided with a plurality of guided portions. Since the battery case 31 houses the heavy battery unit 3, the battery case 31 can be stably attached to and detached from the power supply case 21. In this case, the power supply case 21 is provided with the same number of guide portions 26.

[0030] The battery unit 3 has an attachment portion (for convenience, referred to as a “power unit attachment portion”) 37 for being detachably attached to the power supply unit 2. The power supply unit attachment portion 37 has an extending portion 371 extending downward, and a protruding portion 373 formed on the extending portion 371 and protruding in the width direction perpendicular to the extending portion 371. Groove portions 375 on both sides of the extending portion 371 in the opposing direction allow the extending portion 371 to be elastically deformable in a direction perpendicular to the extending portion 371. The protruding portion 373 has an erecting region 373a that erects outward from the extending portion 371 in the width direction of the battery unit 3, and an inclined region 373b whose erecting amount decreases with increasing distance from the erecting region 373a to the upper side.

[0031] (5)Terminal block Here, a three-core terminal block 71 is used. The terminal block 71 has a locking claw 71a that locks into the through hole 55a in the end wall 51 of the housing 4, and a positioning protrusion 71b that fits into the through hole 55b in the end wall 51, as shown in Figures 3 and 4. The terminal block 71 is covered with a terminal cover 73 when attached to the housing body 5 .

[0032] (6) Fixtures The following description will be given mainly with reference to FIG. 3 and FIG. The fixing device 83 fixes the mounting state of the power supply unit 2 in the power supply unit mounting portion 53. The fixing device 83 is interposed between the end wall 51 and the housing mounting portion 28 extending from the through hole 53a of the end wall 51 of the housing main body 5, thereby preventing the housing mounting portion 28 of the power supply unit 2 from coming out of the through hole 53a. The fixture 83 has at least a plate-shaped main body 830 and a through hole 831 formed in the main body 830. The through hole 831 has at least a wide hole portion 832 that allows for reception of the housing mounting portion 28 of the power supply unit 2, and a narrow hole portion 833 that is formed continuously with the wide hole portion 832 and allows movement of only the extension portion 281 of the housing mounting portion 28 received in the wide hole portion 832. The fixture 83 has a locking portion 834 that locks the movement of the fixture 83. The locking portion 834 is provided on the opposite side (i.e., the engagement direction side) of the narrow hole portion 833 with respect to the wide hole portion 832. The locking portion 834 extends in a shape similar to the letter "V" or "L" toward the narrow hole portion 833 (i.e., the anti-engagement direction side) in the direction in which the wide hole portion 832 and the narrow hole portion 833 are aligned, and has an extension portion 835 that extends downward at an angle, and a bent portion 836 that bends upward from the extension tip of the extension portion 835. The extension portion 835 is elastically deformable in the vertical direction, and is configured so that the bent portion 836 fits into the through hole 53b of the end wall 51 of the housing main body 5 when the fixture 83 is slid in the engagement direction so that the extension portion 281 of the power supply unit 2 is inserted (positioned) in the narrow hole portion 833. When the locking portion 834 fits into the through hole 53b, the bent portion 836 comes into contact with or faces the end surface of the through hole 53b on the wide hole portion 832 side of the end wall 51. This restricts (locks) the fixing device 83 in the fixed state from moving toward the narrow hole portion 833 side (the side opposite to the engagement direction) of the end wall 51. The fixing device 83 has an operating portion 838 that facilitates the fixing operation, and is formed on the opposite side of the locking portion 834 with respect to the wide hole portion 832 and the narrow hole portion 833 and is bent upward.

[0033] (7) Leaf springs Leaf spring 81 is provided at two opposing positions across the central axis of cylindrical housing main body 5. Leaf spring 81 has an overall "V" shape, with one first side 811 attached to housing main body 5 and the other second side 812 fitting into an opening or the like of the installation surface and pressing against the open end surface of the installation surface. The first side portion 811 has a rectangular shape that is long in the up-down direction, and its main surface extends parallel to the central axis of the housing main body 5. The first side portion 811 has a first extending portion 813 that extends outward in the short side direction from both sides in the short side direction in a stepped manner. The stepped portion is referred to as a stepped region 813a. The first extension portion 813 is attached to the leaf spring attachment portion 54 of the housing body 5. Specifically, the first extension portion 813 is smaller than the wide region 541a of the through hole 541 of the housing body 5 and is larger than the narrow region 541b located below the wide region 541a. As a result, as shown in the enlarged view of FIG. 8, with the first extension portion 813 located inside the housing body 5, the step region 813a of the first extension portion 813 is locked at the lower end of the narrow region 541b of the leaf spring attachment portion 54.

[0034] The leaf spring 81 has a locking portion 814 on the first side 811, which locks the leaf spring 81 so that the locked state of the leaf spring 81 is not released. The locking portion 814 is provided on the upper side of the first extending portion 813. The locking portion 814 extends in a shape similar to the letter "V" or "L" from bottom to top, and has an extending portion 814a that extends inward in the thickness direction at an angle and a bending portion 814b that bends from the extending tip of the extending portion 814a to the outside in the thickness direction, as shown in the enlarged view of FIG. 8. The extending portion 814a is elastically deformable in the thickness direction of the first side 811, and is configured to fit into the through hole 543 of the peripheral wall 50 of the housing main body 5 when the leaf spring 81 is slid downward (in the engagement direction) so that the first extending portion 813 of the leaf spring 81 is inserted (positioned) from the wide region 541a to the narrow region 541b. When the locking portion 814 fits into the through hole 543, the bent portion 814b comes into contact with or comes close to the end face of the lower end of the through hole 543 in the peripheral wall 50. This restricts (locks) the first extending portion 813 of the leaf spring 81 in the locked state from moving toward the wide region 541a (counter-engagement direction).

[0035] The leaf spring 81 has a folded portion 815 folded back so as to extend from the extending tip of the first extending portion 813 in the opposite direction to the extending direction of the first extending portion 813, and a second extending portion 816 extending from the folded portion 815 in parallel to the first extending portion 813. The first extension portion 813, the folded back portion 815, and the second extension portion 816 are provided in pairs on both sides in the short direction of the first side portion 811. A wire spring 85 for attaching the lid main body 6 to the housing main body 5 is disposed between the pair of folded back portions 815. That is, the folded back portion 815 acts as a holder for the wire spring 85. The first extension portion 813 and the second extension portion 816 provided at an interval in the thickness direction of the first side portion 811 act as a restricting portion for restricting the wire spring 85 from coming off. As a result, the wire spring 85 can be held by using the mounting fixture 81 attached to the housing main body 5, so there is no need to provide another member for holding the wire spring 85, and the structure can be implemented at low cost.

[0036] 3. Installing and removing the power supply unit into the case The installation will be explained. The housing mounting portion 28 of the power supply unit 2 is inserted through the through hole 53 a of the end wall 51 of the housing body 5 and the wide hole portion 832 of the through hole 831 of the fixture 83 arranged on the end wall 51 . In this state, when the fixture 83 is moved (slid) in the engagement direction, the engaged portion 283 is positioned in the narrow hole portion 833 of the fixture 83, and the housing attachment portion 28 engages with the fixture 83. As a result, the power supply unit 2 is detachably attached to the housing main body 5. As the fixture 83 slides in the engagement direction, the locking portion 834 of the fixture 83 fits into the through hole 53b of the end wall 51 of the housing body 5, and the fixture 83 is restricted (locked) from sliding in the anti-engagement direction. The removal will be described. The bent portion 836 of the fixture 83 in the locked state is moved upward, and the fixture 83 is slid in the anti-engagement direction. As a result, the housing mounting portion 28 of the power supply unit 2 is positioned within the wide hole portion 832 of the through-hole 831 of the fixture 83, and the engagement between the power supply unit 2 and the fixture 83 is released. In this way, the battery unit 3 can be easily attached and detached by sliding the fasteners 83.

[0037] 4. Attaching and detaching the battery unit to the power supply unit The installation will be explained. The upper end of the guided portion 35 of the battery unit 3 is aligned with the guiding portion 265 at the lower end of the guide portion 26 of the power supply unit 2. When the battery unit 3 is moved upward in this state, the vertical rib portion 351 of the guided portion 35 is positioned in the groove portion 263 of the guide portion 26, and the horizontal rib portion 353 of the guided portion 35 engages with the protruding portion 261 within said protruding portion 261. When the battery unit 3 is further moved upward, the protruding portion 373 of the extending portion 371 of the battery case 31 comes into contact with the extending portion 271 of the battery unit mounting portion 27 of the power supply unit 2. When the battery unit 3 is further moved upward, the extending portion 371 of the battery unit 3 elastically deforms and the protruding portion 373 of the battery unit 3 fits into the through groove portion 273 of the power supply unit 2. This causes the power supply unit mounting portion 37 of the battery unit 3 to engage with the battery unit mounting portion 27 of the power supply unit 2. At this time, since the inclined region 373b is formed in the protruding portion 373, the battery unit 3 can be moved upward smoothly. During this engagement, the connector 33 of the battery unit 3 is inserted into the connector 209 of the power supply unit 2 from below, and electrically connected. In this manner, the battery unit 3 can be attached to and electrically connected to the power supply unit 2 simply by moving the battery unit 3 upward. The removal will be described. The tip portion 371a (see FIG. 9(c)) of the extension portion 371 of the battery unit 3 in the engaged state is pushed into the back side where the protruding portion 373 is not formed. This disengages the protruding portion 373 from the through-groove portion 273, allowing the battery unit 3 to be moved downward.

[0038] 5. Opening and closing the light source unit A case where the light source unit 1 in the closed state is changed to the open state will be described. First, the light source unit 1 is rotated around the central axis of the shaft portion 165. The rotation direction (orientation) is a first direction (orientation) in which the engaging portion 167 of the light source unit 1 moves away from the engaged portion 25 of the power supply unit 2. At this time, since the light source unit 1 has the promoting portion 101, the rotation of the light source unit 1 can be easily performed. When the light source unit 1 is rotated until the engagement between the engaging portion 167 of the light source unit 1 and the engaged portion 25 of the power supply unit 2 is released, the light source unit 1 is moved downward. At this time, since the shaft portion 165 extends in the vertical direction, the light source unit 1 can be easily moved downward. In addition, the worker can easily move the light source unit 1 downward by gripping the promoting portion 101. Furthermore, since the shaft portion 165 has an engaging portion 165a that engages with the drop prevention portion 243a of the light source unit support portion 24 of the power supply unit 2, the light source unit 1 will not fall as it is, improving workability.

[0039] When the light source unit 1 is moved downward, the light source unit 1 is lower than the housing body 5 in the vertical positional relationship, and the light source unit 1 can be rotated around the shaft portion 165. At this time, since the light source unit 1 has the facilitating portion 101, the light source unit 1 can be easily rotated. In addition, the shaft portion 165 and the light source unit support portion 24 are each provided at a portion where they overlap in the vertical direction, and the shaft portion 165 is provided on the peripheral portion of the light source unit 1, and the light source unit support portion 24 is provided on the peripheral portion of the power supply unit 2. As a result, when the light source unit 1 is in the open state, the light source unit 1 is in a position where it does not interfere with the battery unit 3, and the lower portion of the battery unit 3 can be opened widely, thereby improving workability. In addition, the area where the power supply unit 2 and the light source unit 1 overlap in the vertical direction can be minimized to ensure the horizontal movement amount (rotation amount). In particular, when the power supply unit 2 is viewed from below (see FIG. 9(b)), the light source unit support part 24 is provided at one of the four corners of the power supply case 21, and the shaft part 165 is provided at a peripheral portion of the light source unit 1 that vertically overlaps with the light source unit support part 24. By providing the shaft part 165 and the light source unit support part 24 at a portion of the periphery of the light source unit 1 and the power supply unit 2 where the light source unit 1 and the power supply unit 2 vertically overlap, the battery unit 3 can be placed in an open state in which it can be attached to and detached from the power supply unit 2 when the light source unit 1 is rotated in a direction perpendicular to the shaft part 165 (horizontal direction) while minimizing the area where the power supply unit 2 and the light source unit 1 vertically overlap, compared to when the light source unit 1 and the power supply unit 2 vertically overlap. Here, since the wire spring 85 is held by the leaf spring 81 on the power supply unit 2 side, and the lid main body 6 is rotatably supported by the wire spring 85, a large working space can be formed below the battery unit 3.

[0040] A case where the light source unit 1 in the open state is changed to the closed state will be described. First, the light source unit 1 is rotated around the central axis of the shaft portion 165. The rotation direction (orientation) is a second direction (orientation) in which the engaging portion 167 of the light source unit 1 approaches the engaged portion 25 of the power supply unit 2, and is opposite to the first direction (orientation). At this time, since the light source unit 1 has the promoting portion 101, the rotation of the light source unit 1 can be easily performed. When the lighting device X is viewed from below, when the light source unit 1 enters the housing main body 5, the light source unit 1 is moved upward. At this time, since the shaft portion 165 extends in the vertical direction, the light source unit 1 can be easily moved upward. Moreover, the upward movement can also be easily performed by an operator by gripping the promotion portion 101. Furthermore, since the engagement portion 165a of the shaft portion 165 abuts against the fall prevention portion 243a of the light source unit support portion 24 of the power supply unit 2, the operator only has to push up the light source unit 1, improving operability. When the light source unit 1 is moved upward, it is further rotated in a second direction (orientation) around the shaft portion 165, and the engaging portion 167 of the light source unit 1 is engaged with the engaged portion 25 of the power supply unit 2. This causes the light source unit 1 to be attached to the power supply unit 2. At the time of this engagement, the worker can use the clicking sound of the engagement to check whether the light source unit 1 has been attached successfully.

[0041] 6. Installation of the fixing device (leaf spring) The installation will be explained. When the first extension portion 813 of the leaf spring 81 is inserted from the wide region 541a of the through hole 541 in the peripheral wall 50 of the housing body 5 to the inside of the peripheral wall 50 and the leaf spring 81 is moved (slid) in the engagement direction (downward), the first extension portion 813 is positioned on the narrow region 541b side of the housing body 5 and the step region 813a of the leaf spring 81 engages with the narrow region 541b. This allows the leaf spring 81 to be detachably attached to the housing body 5. The engagement direction here is from the wide region 541a toward the narrow region 541b. By this sliding of the leaf spring 81 in the engagement direction, the locking portion 814 of the leaf spring 81 fits into the through hole 543 of the peripheral wall 50 of the housing main body 5, and the movement of the leaf spring 81 in the anti-engagement direction is restricted (locked). The removal will be described. The bent portion 814b of the leaf spring 81 in the locked state is pulled out in the thickness direction away from the housing body 5 to release the locked state, and the leaf spring 81 is moved (slid) in the anti-engagement direction. As a result, the first extension portion 813 of the leaf spring 81 is positioned within the wide region 541a of the through-hole 541 of the housing body 5, and the engagement between the leaf spring 81 and the housing body 5 is released. In this manner, the leaf spring 81 can be easily attached to the housing main body 5 by moving the leaf spring 81 in the engagement direction (up and down direction) without using fasteners such as screws.

[0042] 7. Installation of the fixing device (wire spring) The installation will be explained. As shown in FIG. 4, the wire spring 85 has a U-shape, a V-shape, a C-shape or the like, and a base portion 851 is engaged with the engaging portion 613 of the lid main body 6. As shown in FIG. The distance between the pair of extension portions 853 is narrowed, and the pair of extension portions 853 are inserted between the pair of second extension portions 816 of the leaf spring 81 and between the first extension portion 813 and the second extension portion 816. This allows the pair of extension portions 853 to be held by the pair of folded-back portions 815 of the leaf spring 81. This allows the wire spring 85 to be attached to the leaf spring 81, making parts for attaching the wire spring 85 unnecessary, and reducing the number of parts, the work of attaching parts, and the like. Note that the first extending portion 813, the folded portion 815, and the second extending portion 816 may form a "U" shape, and the U-shaped portion may serve as a holding portion for the wire spring 85. Considering the attachment of the leaf spring 81 to the housing body 5 by engaging with it, the U-shaped portion is a stepped U-shaped portion that extends from the first side portion 811 to the back side of the peripheral wall 50 of the housing body 5 in a stepped "U" shape.

[0043] Although the embodiment has been described above, the present invention is not limited to this embodiment, and may be modified as follows, for example. In addition, the embodiment and the modified examples may be combined, or the modified examples may be combined. Furthermore, the present invention also includes examples that are not described in the embodiments and modified examples, and design changes that do not deviate from the gist of the invention.

[0044] <Modification> 1. Shaft and light source unit support (1) In the embodiment, the shaft 165 is provided on the light source unit 1, and the support (light source unit support) 24 is provided on the power source unit 2. However, for example, the shaft may be provided on the power source unit, and the support may be provided on the light source unit. In this case, too, the shaft extends in the front-back direction (up-down direction) in which light is emitted, and the light source unit is supported by the support so that it can be opened and closed in a direction perpendicular to the front-back direction. By providing the shaft and the support at the periphery of the power source unit and the light source unit where the power source unit and the light source unit overlap, when the light source unit is opened in a direction perpendicular to the light emission direction (when rotated in a first direction with the front-back direction as the rotation axis), the area where the power source unit and the light source unit overlap in the front-back direction can be minimized, and the battery unit can be opened and detached from the power source unit. In the embodiment, the support portion 24 is provided in the power supply unit 2, but it may be provided in the battery unit (battery case) and the storage battery inside the battery case may be replaced with the light source unit in an open state. In this case, the lower part of the battery unit can be widely opened. The shaft portion 165 has an engaging portion 165a, and the support portion 24 has a notched portion 243 (a drop prevention portion 243a and a rotation restriction portion 243b), but the notched portion may be provided on the shaft portion and the engaging portion may be provided on the support portion. (2) The shaft portion 165 is provided on the holder 16 that holds the lens body 14, but may be provided on the lens body or the base, for example. However, when the base 10 is made of a material with high thermal conductivity (for example, a metal material), it is preferable in terms of cost to provide the through hole 10c in the base 10 and provide the shaft portion that passes through the through hole 10c on a member other than the base. (3) The support portion 24 has the fall prevention portion 243a configured by the notch portion (through hole) 243, but the fall prevention portion may be configured by, for example, a recess that does not penetrate in the thickness direction. In other words, it is sufficient if the structure allows the engagement portion 165a of the shaft portion 165 to engage.

[0045] 2. Light source unit The positions of the shaft portion 165 and the engagement portion 167 of the light source unit 1 are not particularly limited, but taking into consideration the shape of the rectangular parallelepiped power supply case 21 of the power supply unit 2 and the degree of overlap between the power supply unit and the battery unit when in the open state, it is preferable to provide them on the opposing side of the battery unit in the power supply case, on both side walls.

[0046] 3. Power supply unit The power supply unit 2 includes the operation display unit 23, but may not include the operation display unit 23. In this case, the circuit board 203 does not need to be provided parallel to the front and back directions. The protrusion 211b of the deformable portion 211a that accepts the operation of the operation switch 231 is covered by the recessed pressing portion 235a of the protective cover 235, but for example, as shown in Fig. 10, the protrusion 1211b of the deformable portion 1211a may be inserted through the through hole 1235a of the protective cover 1235. In this case, it is preferable that the protrusion 1211b is covered by a thin cover sheet (e.g., silicone rubber) 1029 that covers the protrusion 1211b. This can provide a waterproof effect for the operation switch 231.

[0047] 4. Locking section and engagement structure Although the locking portions 814, 834 are provided on the mounting fixture 81 and the fixing fixture 83, the locking portions may be provided on the housing body, and a through hole or a recess may be provided in the mounting fixture or the fixing fixture. Also, the engagement structure between the mounting portion 27 of the power supply unit 2 and the mounted portion 37 of the battery unit 3 may be reversed. That is, the battery unit may have an extending portion that extends toward the power supply unit and a through groove portion or a recessed portion, and the power supply unit may have an extending portion and a protruding portion that extend in the insertion direction and are elastically deformable in the thickness direction. Also, a protruding portion may be provided on the extending portion of the power supply unit, and a through hole or a recessed portion may be provided on the extending portion of the battery unit.

[0048] <Other> 1. Installing and removing the unit in the case In the embodiment, the fasteners 83 are used to fasten the power supply unit 2 to the housing body 5, but they may also be used when attaching a unit other than the power supply unit 2. In other words, in a structure in which the unit is fixed to the housing main body with a fixing device, the unit has an attachment portion (one example is the housing attachment portion 28 in the embodiment) having an L-shaped extended portion and an engaged portion, the housing main body has a first through hole (one example is the through hole 53a in the embodiment) through which the attachment portion passes, and the fixing device has a wide hole portion (one example is the wide hole portion 832 in the embodiment) of a size sufficient to allow the attachment portion to pass through and a narrow hole portion (one example is the narrow hole portion 833 in the embodiment) of a size sufficient to only allow the extension portion of the attachment portion to pass through, which are continuous in the first direction. This allows the unit to be easily attached to the housing body by inserting the mounting portion of the unit through the first through hole of the housing body and the wide hole portion of the fixing device, and then sliding the fixing device in the first direction opposite to the side where the narrow hole portion is located relative to the wide hole portion (engagement direction). That is, when the unit is fixed to the housing body with, for example, a screw, the fixing work is troublesome. When focusing on this structure, the configurations of the light source unit, housing, and fixture (leaf spring or wire spring), and the mounting structure of the battery unit to the power supply unit are not particularly limited, and may be structures other than those in the embodiment. Also, the lighting device may not have a battery unit. In the above structure, the housing body has a second through hole (one example is through hole 53b in the embodiment) in the engagement direction of the fastener, and the fastener has an abutting portion (one example is bent portion 836 in the embodiment) that abuts against an end face constituting the second through hole of the fastener and located on the opposite side to the engagement direction when the fastener is slid in the engagement direction and the mounting portion engages with the fastener. This makes it possible to fix (lock) the mounted state of the unit to the housing body. The abutting portion may be provided at the extending tip of an extending portion (one example is the extending portion 835 in the embodiment) that is elastically deformable in the thickness direction of the fixture. This allows the abutting portion to be automatically inserted into the second through hole by sliding the fixture.

[0049] 2. Attaching and detaching the battery unit to the power supply unit In this embodiment, the battery unit 3 is moved up and down relative to the power supply unit 2 to be attached and detached. That is, in the first structure (illumination device) that allows the battery unit to be detachably attached to the power supply unit, one of the battery unit and the power supply unit (one example is the power supply unit 2 in the embodiment) has a dovetail groove portion (one example is the guide portion 26 in the embodiment) that extends in the attachment direction (one example is the up-down direction in the embodiment) on a surface facing the other of the battery unit and the power supply unit (one example is the wall portion 21a in the embodiment), and the other of the battery unit and the power supply unit (one example is the battery unit 3 in the embodiment) has a slide rib portion (one example is the guided portion 35 in the embodiment) that is inserted into the dovetail groove from one end (one example is the lower end in the embodiment) and is slidable within the dovetail groove on a surface facing the one of the battery unit and the power supply unit (one example is the wall portion 31a in the embodiment). This positions the battery unit in a direction other than the attachment direction relative to the power supply unit.

[0050] The second structure (illumination device) that allows the battery unit to be attached to and detached from the power supply unit is the first structure (illumination device), in which the battery unit and power supply unit have an engaging portion (one example is the battery unit attachment portion 27 in the embodiment) and an engaged portion (one example is the attached portion 37 in the embodiment) that allow the battery unit and power supply unit to engage with each other when the battery unit is moved in the attachment direction. This allows the battery unit to be attached to the power supply unit by moving the power supply unit in the attachment direction. In particular, since there is a sliding rib portion that slides within a groove portion, the battery unit can be easily fixed in place by the engagement structure in the attachment direction.

[0051] The third structure (lighting device) that allows the battery unit to be detachably attached to the power supply unit is the first or second structure (lighting device), in which the battery unit and power supply unit are provided with connectors (an example is connectors 209, 33 in the embodiments) for electrically connecting them, one connector (an example is connector 209 in the embodiments) is provided on the receiving side of the slide rib in the dovetail groove, and the other connector (an example is connector 33 in the embodiments) is provided on the side of the slide rib opposite the side that is inserted into the dovetail groove, and these connectors connect in the attachment direction. With this, by moving the battery unit only in the attachment direction relative to the power supply unit while the dovetail groove and the slide rib are aligned, the battery unit can be attached to the power supply unit and electrically connected at the same time. In other words, by having the first to third structures, the battery unit can be attached to the power supply unit and the electrical connection can be performed more easily and efficiently than when the battery unit is attached to the power supply unit and the electrical connection is performed separately from the attachment. Note that, when focusing on this structure, the configurations of the light source unit, the housing, and the mounting fixture (leaf spring or wire spring), and the structure for attaching and detaching the unit to the housing are not particularly limited, and may be structures other than those of the embodiments.

[0052] A fourth structure (illumination device) that allows the battery unit to be detachably attached to the power supply unit is any of the first to third structures (illumination devices) that includes a light source unit on the side of the power supply unit opposite to the attachment direction of the battery unit, and the light source unit is attached to the power supply unit. This positions the battery unit in the attachment direction relative to the light source unit, thereby preventing the battery unit from falling off.

[0053] 3. Structure of leaf spring In the embodiment, leaf spring 81 has a holding portion (folded portion 815) for wire spring 85. That is, in a first lighting device including a housing and a leaf spring for fixing the housing to an opening of an installation surface, the housing includes a housing main body and a lid main body, the leaf spring is attached to the housing main body, and the lid main body is attached to the leaf spring attached to the housing main body via the wire spring. This makes it possible to reduce the number of parts and assembly work required to attach the wire spring to the housing body. In other words, this lighting device solves the problem of the large number of parts required when the leaf spring and the wire spring are separately provided on the housing body. The second lighting device is the first lighting device, in which the leaf spring has a stepped U-shaped portion that passes through a through hole in the peripheral wall of the housing body and extends in a U-shape inside the housing body and has a stepped extending base, the stepped U-shaped portion is perpendicular to the direction in which the housing body and the lid body move away from each other and extends outward in the perpendicular direction, the wire spring has a "V" shape, a "U" shape, or a shape similar thereto, with a pair of extending portions joined at a base, the base is fixed to the lid body, and the pair of extending portions are disposed and supported between the pair of stepped U-shaped portions. As a result, the housing body has a through hole with which the leaf spring engages, thereby being able to hold the pair of extending portions of the wire spring, and the housing body can have a simple structure. When focusing on the leaf spring, the light source unit, the power supply unit, the battery unit, the structure of the housing other than the portion where the leaf spring is attached, the structure for attaching and detaching the unit to the housing, the structure for attaching the battery unit to the power supply unit, and the structure for opening and closing the light source unit are not particularly limited and may be other than those in the embodiment. Also, the light source unit may be another lighting device that does not have an operation switch or a battery unit.

[0054] 4. Operation switch In this embodiment, the operation switch 231 is provided on the circuit board 203, and the power supply case 21 that houses the circuit 20 is provided with a deformable portion 211a. That is, in a unit (one example is the power supply unit 2 of the embodiment) equipped with an operation switch, the unit accommodates a circuit in which a plurality of electronic components are mounted on a circuit board in a case (one example is the power supply case 21 of the embodiment), an operation switch that is operated from a direction parallel to the first main surface is mounted on a first main surface of the circuit board, and the case is composed of a first case located on the first main surface side of the circuit board and a second case located on the second main surface side, which is the opposite surface to the first main surface of the circuit board, and the first case has a deformable part that is elastically deformable in a direction parallel to the circuit board in an opposing portion that faces a button part of the operation switch, and the deformable part is configured not to exceed the first main surface of the circuit board to the second main surface side. This makes it possible to prevent the deformable part from coming into contact with the circuit board. That is, this unit solves the problem that the deformable part interferes with the circuit board. [Explanation of symbols]

[0055] X lighting device 1 Light source unit 2 Power supply units 3 Battery unit 24 Support part 165 Shaft

Claims

1. A light source unit having a light emitting element on a front side thereof; a battery unit in which a storage battery is detachably housed in a battery case; a power supply unit for turning on the light source unit; Equipped with the light source unit is located on the front side of the power supply unit or the battery case, The light source unit has a shaft portion extending in a front-back direction, the power supply unit or the battery case has a support portion that supports the light source unit rotatably around the shaft portion as a rotation axis, When the light source unit rotates around the shaft portion in a first direction to reach a first state, the storage battery becomes removable from the battery case; When the light source unit is viewed from the front side, the shaft portion is provided on the periphery of the light source unit, When the support portion is viewed from the front side, the support portion is provided on the periphery of the power supply unit or the battery case. Lighting equipment.

2. the light source unit has an engaging portion that engages with an engaged portion of the power supply unit or the battery case on which the support portion is provided when the light source unit rotates around the shaft portion in a second direction to enter a second state, When the engaged portion is viewed from the front side, the engaged portion is provided at a position different from the supporting portion on the periphery of the power supply unit or the battery case where the supporting portion is provided.

10. The lighting device of claim 1.

3. the light source unit has a mounting member on which the light emitting element is mounted, The mounting member has a promotion portion that promotes the rotation of the light source unit.

3. The lighting device according to claim 1 or 2.

4. The support portion is provided on the power supply unit, the battery unit is detachably attached to the power supply unit; one of the battery unit and the power supply unit has an extension portion that extends toward the other of the battery unit and the power supply unit in a direction perpendicular to a front-rear direction, and a recess, a through groove portion, or a through hole portion that is formed in the extension portion and extends along the extension direction of the extension portion, The other of the battery unit and the power supply unit has an engaging protrusion that engages with the recess, the through groove, or the through hole when the battery unit is moved in a front-to-back direction relative to the power supply unit. The lighting device according to any one of claims 1 to 3.

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